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Biomedical subjects

J Pradas

Publications and source records attributed to J Pradas.

22 records · Page 2Linked to original sources

Diabetic polyneuropathy. Axonal or demyelinating?

Diabetic polyneuropathy is the most common subgroup of diabetic neuropathy, but its nature is controversial as it might be demyelinating and/or axonal. We have tried to determine whether diabetic polyneuropathy is electrophysiologically axonal, demyelinating, or both. We have studied the sural and peroneal nerves and the electromyographies of leg muscles in 50 healthy subjects (average age 67.2 years, range 45 to 84 years), in 50 diabetic patients (average age 66.34 years, range 44 to 82 years) showing no symptoms and/or signs of polyneuropathy (DP1), and in 50 diabetic patients (average age 67.10 years, range 49 to 87 years) showing symptoms and/or signs of polyneuropathy (DP2). The amplitude (AMP) of sural and peroneal nerves in healthy and DP1 subjects was similar. Conduction velocity (CV) of sural and peroneal nerves was slower in DP1 subjects than in healthy subjects. DP2 subjects showed AMP and CV values significantly lower than those in DP1 subjects, and signs of acute and chronic denervation/reinervation were found in the leg muscles. We believe that this result indicates that diabetic patients have two types of polyneuropathies: a demyelinating disease that could appear in diabetic patients with and without symptoms of polyneuropathy, and an axonal loss that is responsible for most of the symptoms.

Aged↗

[Post-radiotherapy brachial plexopathy and cervical myelopathy].

The case of a 58-year-old male who, after 47 months of treatment with cervical radiotherapy for labial carcinoma, developed brachial plexopathy and six months later cervical myelopathy is herewith presented. Involvement of both the brachial plexus and the spinal cord in the same patient secondary to radiotherapy is exceptional.

Brachial Plexus↗